As the year 2000 approaches, the human race is facing its greatest challenge ever: Brain burnout! Most Americans believe that people use only a fraction of their real brain capacity and we have limitless untapped mental resources - but nothing could be further from the truth. The human brain is already within 20 percent of its capacity for processing information, British researchers have found. "Overtaxed human brains are being forced to take on duties Mother Nature never could have foreseen - from operating high-tech computers to negotiating an intricate maze of social rules," said an expert familiar with the study. "Our world will only become more complex in the next century - and people will increasingly find themselves without the brain power to function." Researchers at BT Laboratories near Ipswich found that the limiting factor is the number of blood vessels needed to feed the 100 billion neurons involved in brain activity, according to study results reported in New Society magazine. What's more, there's no hope that evolution will step in to rescue us from brain burnout - because human evolution stopped at least 50,000 years ago, according to Richard Cutler of the National Institute on Aging. People with defective eyesight who would have been devoured by saber-toothed tigers are now wearing contact lenses and passing along poor vision to their offspring. And people whose sheer stupidity would have caused them to starve to death or accidentally fall off a cliff are surviving long enough to reproduce, thanks to mod-ern-day social services and safety rules. As a result, the old survival-of-the-fittest laws no longer apply when it comes to the human brain or body. "Not only are we not improving," Cutler says, "we are getting worse!" --Weekly World News